I'm looking for a good free (and preferably open source) circuit app for Android to analyse circuits using standard parts shelf components. What is the best you have found?

 

Try this : http://droidtesla.com/demo.html

 

I have tried Droid Tesla, and while it's well laid out, the parts are HUGE with a small work area (100x100 was the largest work area presented, but parts are around 8x8 each) which made for some simple control circuits soon becoming cramped in the workspace. Does any have larger, or unlimited workspaces?

 

You can always just point your browser to any online tools..like..
http://www.partsim.com/simulator